Question

qt tableview如何去除导航

Answer 1

QStandardItemModel *model = new QStandardItemModel();
ui->tableView->setModel(model);
.
.
.
int curRow = ui->tableView->currentIndex().row();
model->removeRow(curRow);
视图模型，model实现对数据的操作。
void XXX::DeleteITEM()
{
QItemSelectionModel *selectionModel = table_view->selectionModel();
if (selectionModel->hasSelection()) {
QModelIndexList indexList = selectionModel->selectedIndexes();
QModelIndex index = indexList.at(1); // 第几列
QString strTaskName = index.data().toString();
qDebug() << strTaskName;

} else {
QMessageBox::information(NULL, tr("Information"), tr("not select"));
}
}
void MainWindow::deleteItem()
{

QModelIndex index = treeView->selectionModel()->currentIndex();

treeModel->removeRow(index.row(), index.parent());
}
搞出来了，只是换了种方法

QSqlQuery query;
// query.prepare("delete from student where id = 2");
// query.bindValue(curRow);
int curRow = ui->tableView->currentIndex().row();
QModelIndex index = ui->tableView->currentIndex();

int id=index.sibling(curRow,0).data().toInt();
qDebug("shuzi is %d",id);

query.prepare("delete from information where id = :id");
query.bindValue(":id",id);

Answer 2

直接删除就好了，